Scale-removing mechanism



F W WADDELL ET AL SCALE REMOVING MECHANISH Filed Jan. 25, 1926 Aug. 241926 Aug. 241, 1926.

2 2 3 t M Qu! w w v 5, mw nwv l .m m. s 2 HM L M .f A S 7.\ T M M E M 9l. L m H M a D m D V m O m w M R e E W L F 0V A F w M Immun" We'sses m.muy ...M mi MW MZ m E m .Patented Aug. 24, '1926.-

UNITED STATES PATENT oFFlcE.

:Banamex w. waniniznr.,` or ciurfro'N, un HENRY, u. won'rz, orPITTSBURGH,

. rENNsYLvAmA.

scaLn-nnnovme ucmrsn.

appumon med January as, 192e.- serial im 83,559.

This invention relates to scale removers, and while not limited thereto,'relates more particularly to scale -removers especially adapted toremove the scale from forged wheel blanks and the like.

One object of the present invention is toi provide a scale remover whichwill effectively remove the scale from forged wheel blanksv and thelike, quickly andl withy the expenditure of -a minimum of labor.

Another object is to provide a scale remover vhaving the novelconstruction, design and combination of parts hereinafter dev scribedand illustrated in the accompanying drawings.

' In the drawings;

Figure j 1 is a vertical sectional view through a scale' removingapparatus embodying our invention. 29 'Figure 2 is a horizontalsectional view on the line II-II of Figure 1.

Figure 3 is a sectional view on the line III-III- of Figure 1.

Figures 4 and 5 lare. enlarged sectional details of the operating shaftsand striking chains.v

Figure 6 is'a plan and Figure is a side elevation of the work-support.

Referring more particularly to the drawings, the numeral 2 designatesthe casing of the apparatus which is'rnounted in a base 3 which is cutaway .as a't 4 to permit the escape of the scale into a pit or bin, notshown. Two pairs of shafts 5 and 6, and 7 and -8 are journaled invertically spaced relation in bearings 9 in the casing2. The shafts 5,6, 7 and 8 have removable end portions or trunnions 10 which are' boltedto the main portion of the shafts so as to 'provide for ready removal ofthe main portions of the shafts.

The shafts 5, 6, 7and,8 are provided with gears 14, .15, 16 and 17,respectively, all of which are intermeshed so that all the Shafts .mustrotate together and at the Same speed A motor 18 .is provided fordriving the shafts 5, `.6, 7 and 8 and has its armature shaft 19provi/ded with a pinion 20 which is in mesh with the gear 16 on theshaft 7. .50

site rows of spaced vrs or depressions 21, .and a plurality of chamretaining rin 22 are mounted on each of the shafts and spacer rings 23.

v bla held in alinement with the recesses 21 by chains 24 are secured onthe rings 22 so that their upper links enter the recesses or depressions21. The recesses 21 serve to permit the chains to move or swing relativeto the rings 22 and also serve to hold the chains in spaced relation onthe shafts 5, 6, 7 and 8.

A plurality of strikerY A plurality of-angle pieces 25 are Secured ialong ,one side of the casing 2v and extend into the path of thework-piece. The wheel blank or work-piece designated by the letter Ais'adapted to be supported by and moved into and out of the scaleremoving apparatus by the eel 26 of a charging machine (not shown Thecharging machine is part of the standard mill equipment.

The base plate 3 of the casing 2 extendsv a material distance beyond theforward end of the casing and is provided with a roller support'27 forsupporting the peel 26 as it is .extended to enter the casing 2.

The peel 26 has its forward end or workpiece supporting member 28removable so forms of work-piece supporting members.

-The work-Supporting member 28 is provided with a4 forked forward end 29adapted to fit around the hub portion B' of the wheel blank A, s o as toform a secure mountin and bearing for the wheel blank.

n operation the work-piece or wheel blank A is positioned on the'peel26,and the motor 18 is started to rotate the shafts 5, 6, 7 and 8thereby whirling the chains 24.l The peel 26 is then moved forward tomove the work-piece into the nath, of the chains 24 which strike theblank A and break oi the scale. As the blankA moves into thecasingpieces 25 and cause the lank to rotate on as to provide for thevattachment of different j the l thereby exposing the parts of the4resting on the peel to the action of the striking chains 24. The peel26 may be withdrawn and inserted a number of times dring the scaleremoving operation to cause a more extensive rotation of the blank, ifEach of the shafts 5, 6, 7 and 8 is prov1d ed with a plurality ofdiametrically oppo' desired.

While we have shown and described one specific embodiment of 'ourinvention, it gs` will be understood that we do not wish to be limitedthereto, Since various modifications i when said shafts are rotated, anda recipstriking elements.

rocatory work-piece support adapted to l move the work-piece into thespace between said vertically spaced shafts so as to permitsaid-striking elements to strike against the upper and lower faces ofthe work-piece.

2.`A scale removing mechanism comprisingLin combination, a plurality offlexible striking elements adapted to strike and remove the scale from awork-piece, and a movable work-piece support adapted to move thework-piece into position to be struck by said striking elements.

3. A scale removing mechanism comprising, in combination, a plurality offlexible striking elements adapted to strike and remove the scale from awork-piece, and a reciprocatory work-piece support adapted to move thevwork-piece into position to be struck by said striking. elements.

y 4. A scale removing mechanism comprisi11g in combination, a pluralityof centrifugally operated flexible striking elements adapted to strike`and remove' the scale from y a workipiece, and a movable work-piecesup,- port adapted to move the work-piece into the path'of said strikingelements.

5. A scale removing mechanism comprising, in combination, a casing, aplurality of shafts journaled in said casing, means for 'rotating saidshafts, a plurality of flexible striking elements on each of saidshafts, and a work-piece support for 'supportingthe work-piece inposition to be struck by said 6. A scale removing mechanism comprising,in combination, a casing, a plurality of l. shafts journaled in saidcasing, means for rotating said shafts, a plurality of ex1ble 'rotatingsaid shafts,

Leonesa striking elements secured' to each of said shafts and adapted tohaveI a centrifugal motion imparted thereto when said shafts arerotated, and a reciprocatory work-piece support adapted to move thework-piece into the path of said striking elements.

7. A scale Vremoving mechanism compris` ing, in combination, a casing, aplurality of shafts journaled in said casing, means for a plurality ofstriking elements on each of said shafts, a workpiece support forsupporting the work-piece in positlon to be struck by saidstriking'elements, and means forlrotating the workpiece on saidwork-piece support.

8. A scale' removing mechanism for removing scale from wheel blankscomprising, in combination, a casing, a plurality of shafts journaled insaid casing and spaced vertically, means for rotating said shafts, aplurality of striking chains secured to each of said shafts and adaptedto have a centrifugal motion imparted thereto when said shafts arerotated, a reciprocatory workpiece support adapted to support and movethe wheel into the path of said centrifugally moving chains so that saidchains will strike and remove the scale from the surface :if the wheel,and means in said casing adapted to engage and rotate the wheel on saidworksupport.

9. A scale removing mechanism comprising, in combination a casing, a,lurality of vertically spaced shafts journa ed in said casing, meansfor rotating said shafts, a plurality of flexible striking elementssecured to each of said shafts and adapted to have a centrifugal motionimparted thereto when said shafts are rotated, a reciprocatorywork-piece support adapted to rotatably support and move the work-pieceinto the space between said vertically spaced shafts so Aas to permitsaid striking elements to strike against the upper and lower faces ofthe work-piece, and means for rotating the work-piece on said work-piecesupport.

In testimony whereof, we have hereunto set our hands.

FREDERICK W. WADDELL. HENRY M. WOLTZ.

